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1.
Abstract

The small Channel Island of Herm combines several distinct habitats ranging from steep rocky coasts and a rolling upland plateau in the south to a dune-fringed sandy lowland in the north. Where upland and lowland meet, a line of megalithic tombs constitutes the island’s most striking archaeological feature. Four seasons of fieldwork (2008–2011) have sought to determine the environmental history of northern Herm since the last glacial period and to place the tombs within the broader context of Neolithic activity. A series of trenches and boreholes has revealed the changing morphology of the prehistoric land surface that lies buried beneath the extensive deposits of aeolian sand that cover this part of the island. Results indicate that much of the lowland plain was initially occupied by a shallow marine inlet that was cut off from the sea and progressively infilled starting in the 4th millennium b.c. Pollen and soil sequences reveal how the wooded early Holocene landscape around the edges of this inlet was steadily degraded by human impact and climate. Traces of settlement and cultivation (plowmarks) suggest the megalithic tombs were situated within an agricultural landscape. This finding has relevance for theories that have proposed that islands were favored places for burial by communities visiting from the neighboring mainland. Herm was a locus for settlement and farming as well as for burial during the Neolithic period.  相似文献   

2.
Several superimposed systems of agricultural terracing are preserved at the archaeological site of La Laguna in central Mexico. Excavations uncovered complex stratigraphic sequences of terrace fills and colluvial deposits. Their chronology was established by radiocarbon, optically stimulated luminescence (OSL), and the presence of diagnostic features and artifacts. The Formative occupations of the site (ca. 600–400 BC and 100 BC–AD 100) resulted in severe erosion and exposure of indurated subsoil horizons. In the Middle to Late Postclassic (AD 1150–1520) stone-walled terraces were built to recover the degraded slopes for cultivation. Renewed reclamation works have been undertaken since the Colonial period, eventually taking the form of sloping-field terraces with berms planted in maguey. The reconstructed sequence of local land use underscores the risks of dating agricultural features by association with sherd scatters, as well as the complexity of the relationships between demographic variables, agricultural intensity and terracing.  相似文献   

3.
ABSTRACT

We integrate functional weed ecology with crop stable carbon and nitrogen isotope analysis to assess their combined potential for inferring arable land management practices in (semi-)arid regions from archaeobotanical assemblages. Weed and GIS survey of 60 cereal and pulse fields in Morocco are combined with crop sampling for stable isotope analysis to frame assessment of agricultural labour intensity in terms of manuring, irrigation, tillage and hand-weeding. Under low management intensity weed variation primarily reflects geographical differences, whereas under high management intensity fields in disparate regions have similar weed flora. Manured and irrigated oasis barley fields are clearly discriminated from less intensively manured rain-fed barley terraces in southern Morocco; when fields in northern and southern Morocco are considered together, climatic differences are superimposed on the agronomic intensity gradient. Barley δ13C and δ15N values clearly distinguish among the Moroccan regimes. An integrated approach combines crop isotope values with weed ecological discrimination of low- and high-intensity regimes across multiple studies (in southern Morocco and southern Europe). Analysis of archaeobotanical samples from EBA Tell Brak, Syria suggests that this early city was sustained through extensive (low-intensity, large-scale) cereal farming.  相似文献   

4.
Abstract

Semi-arid landscapes are vulnerable to cultivation, overgrazing and climate variability, although it is difficult to identify the relative significance of these three factors. In the South African Karoo, the ‘desertification debate' seeks to explain a change to more shrubby vegetation in heavily grazed areas. We examine these issues in catchments where farm reservoirs provide sediment stores with 137Cs, 210Pb, geochemical and mineral magnetic signatures. Rainfall data and stocking numbers are reported and current erosion rates are estimated. Sediment accumulation in the reservoirs increases between 1935 and 1940, probably due to rises in the frequency of rainfall events of >25mm day. Significant increases in sedimentation rates (×8) occur during rain-fed wheat cultivation. In an uncultivated catchment, sediment yields remain relatively high and reflect increases in erosion from hillslopes, colluvial storage, and cultivated land sources. Gully systems have acted as transport routes rather than sediment sources over the last ~70 years. Badland erosion rates average ca. 50t ha?1 yr?1. At Ganora, their development in the 1920s strongly influences peak sedimentation between 1970 and 1980. Any delay between badland initiation and increased sediment yield appears to be a function of landscape connectivity. Recovery following disturbance is occurring slowly and is likely to take >100 years. De-stocking and better management systems are reducing erosion rates but may be offset by increases in rainfall intensity.  相似文献   

5.
Abstract

Reconstructions of the late Quaternary paleogeography of Greece and the Aegean show that at 18,000 years B.P. the northern Aegean and northern Adriatic formed large coastal plains traversed by many rivers. Broad plains also existed off the coast of Elis and the present Gulf of Korinth, and along the Anatolian coast. Many islands, such as Kerkira, Euboea, and the northern Sporadhes, were connected with the mainland, and most of the Cycladic islands were joined together in a Cycladic semi-peninsula. The post-glacial rise of sea level beginning ca. 15,000 B.P. restored around 9,000 B.P. the coastal geography to approximately its present configuration. The late Quaternary paleogeography and its subsequent changes have many archeological implications that are worth serious consideration. The well-watered northern coastal plains may have furnished subsistence for a plains population quite independent of the resources of the northern mountain regions, and they constituted easy access to the Greek peninsula from the NE and NW. Loss of coastal plain land during the post-glacial rise of sea level drastically changed the resource base in many areas. The island of Melos, known source of obsidian for toolmaking since at least 10,000 B.P., may have been discovered considerably earlier when access to the island was largely over land.  相似文献   

6.
ABSTRACT

Pohnpeians regard human beings, natural forces, and supernatural forces as equally important agents in the making of their island’s past. Pohnpei’s rapid transition from an island where families maintained only a small number of coconut plantings to one whose 20th century skyline was dominated by coconut palms should therefore draw our attention to the entanglement of human and nonhuman agents that facilitated the growth of the copra trade on Pohnpei at the end of the 19th century. This article focuses on the modern proliferation of coconut trees on Pohnpei, its link to a powerful scientific agricultural discourse, and the coconut’s attendant effects on Pohnpeian relationships and ecology. It argues that Pohnpeians and coconuts, commodified as copra, remade the land and one another as indigenous and foreign visions of the coconut collided.  相似文献   

7.
A methodology is described by which spatial patterns of land use were reconstructed from pollen analyses on anthropogenic sediments at a recently excavated early Neolithic timber ‘hall’ in north east Scotland. The anthropogenic sediments were from a deep, small diameter pit within the building. They present numerous taphonomic and interpretative challenges to the analyst, but from this type of deposit, the power to estimate quantitatively the vegetation structure around the archaeological site makes such difficult deposits very significant. A rigorous methodology is firstly described, therefore, by which confidence in ecological interpretation can be established. Secondly, the source of pollen in the deposit is evaluated. Thirdly, the possible pollen source area and structure of the surrounding vegetation are estimated by quantitative simulation modelling. Finally, these analyses are compared with region-scale pollen analyses from nearby conventional wetland deposits with much larger pollen source areas. The pollen assemblages recovered probably reflect land uses adjacent to the ‘hall’ and up to 2.5 km around. Cereal cultivation was the most important land use immediately around the ‘hall’, possibly grown between stands of scrub Corylus (hazel) woodland. These intensive but local-scale land uses cannot be discerned in region-scale pollen analyses.  相似文献   

8.

The records of the early 20th century Rarotongan land courts are an invaluable source of ethnohistoric information regarding pre-contact land tenure, social and political relations, and historical processes affecting tenure and relations. They are analysed here from the point of view of contextualising the archaeological record of the island. Pre-contact Rarotongan society is shown to have been fluid and flexible, although one notable trend is the gradual aggrandisement of ariki power. This trend continues into the missionary and early colonial periods, where political unity and ariki hegemony become established. European intervention was a single, though defining, episode in a long history. Although it transformed the political order, Rarotonga remained resolutely Rarotongan.  相似文献   

9.
Abstract

The Early Metal Period (1800 cal BC–AD 300) of the Finnish inland regions is characterized by a scarcity of archaeological remains. Its latest stages, in particular, have proved to be difficult to interpret. This paper discusses the continuity of settlement in the Early Metal Period as indicated by archaeological survey and pollen-analytical data. The study area is situated in Repovesi National Park in southeastern Finland. The pollen analysis was constructed from a sediment sequence taken from Lake Katajajärvi. The archaeological survey data from Repovesi National Park supports earlier hypotheses of the small number of Early Metal Period sites. In the pollen data, the first anthropogenic impact is recorded from about 2600 BC onwards, with weak signs of cultivation around 2370 BC. From around 1900 BC onwards a clear change in tree, shrub and herb pollen percentages indicates anthropogenic impact, possibly grazing, in the area. The pollen-analytical results also revealed a cultivation period of about 900 years at the end of the Early Metal Period, providing proof of continuity in settlement during a period characterized by a scarcity of archaeological material. A new beginning of cultivation from cal AD 1160 to 1250 onwards can be considered as indicating population growth, developing settlements and the colonization of new areas. The results from Repovesi are challenging from an archaeological point of view, because they represent slash-and-burn cultivation that appears to have been practised in total wilderness conditions. Comparison of the Lake Katajajärvi results with other areas raises new questions that call for a discussion of early slash-and-burn cultivation in new perspective.  相似文献   

10.
Abstract

Many examples of former handloom weavers’ cottages in central Lancashire have been radically altered and their identification depends heavily on documentary evidence. It is also apparent that the size and plan-form of weavers’ cottages in this region varied markedly and that many of those with small loomshops appear to show no fundamental difference from other contemporary working-class dwellings. From identifications that have been made, it seems possible that the erection of handloom weavers’ terraces were of considerable importance in the development of both rural and urban settlement in the region during the Industrial Revolution.  相似文献   

11.
Pacific Islanders have adapted over time to a wide range of social and environmental conditions. Subsistence regimes include broad-based fishing and gathering along with horticulture, particularly the cultivation of staple tubers. Agricultural ecosystems on many islands manifest elaborate expressions of greater inputs of labor or the necessity to overcome agronomic constraints to production. Landscapes of intensive agriculture once found throughout Oceania include yam mounds, raised fields, and irrigated terracing. Most of these systems are either abandoned or greatly diminished in scale. Findings from research in the Fiji Islands exemplify some of the forms and functions of these landscapes. Field study at an active system of irrigated terraces for growing taro (Colocasia esculenta) on the remote southern island of Kadavu elucidates the dynamic operations of a gardening strategy that was once much more prevalent throughout the archipelago. Changing political economies across the region may have radically altered humanenvironment relations, but intensive agricultural landscapes endure, providing visible evidence and imparting valuable lessons for traditional cultural ecology in Oceania.  相似文献   

12.
Abstract

In the Pacific islands, subsistence diversity made possible continuous production of food while well-developed exchange networks redistributed these foodstuffs as well as items within the prestige economy. All these were aspects of the ‘storage structures’ that enabled social and nutritional value to be saved, accumulated and later mobilised. In addition, there were investments in the land, landesque capital, which secured future food surpluses and so provided an alternative to food storage, in a region where the staple foods were mostly perishable, yams excepted, and food preservation was difficult. Landesque capital included such long-term improvements to productivity as terraces, mounds, irrigation channels, drainage ditches, soil structural changes and tree planting. These investments provided an effective alternative to food storage and made possible surplus production for exchange purposes. As an example, in the New Georgia group of the western Solomon Islands irrigated terraces, termed ruta, were constructed for growing the root crop taro (Colocasia esculenta). Surplus taro from ruta enabled inland groups to participate in regional exchange networks and so obtain the shell valuables that were produced by coastal groups. In this paper, we reconstruct how this exchange system worked in New Georgia using ethno-archaeological evidence, we chart its prehistoric rise and post-colonial fall, and we outline the factors that constrained its long-term expansion.  相似文献   

13.
Abstract

The site of Corondó, situated in Campos Novos, in the São Pedro D'Aldeia municipe (Rio de Janeiro State, Brazil), was dated between c. 4000 and 3000 years BP. The high prevalence of dental caries in its population suggests that it might have been a locus of plant cultivation, a hypothesis supported by the presence of diverse plant remains and by the high frequency of grinding artefacts at this site. Anthracological analysis aimed to identify the environment of the site. The charcoal spectrum suggests that it was situated in a restinga forest, near to the Atlantic forest and with the presence of mangrove and open restinga in the environment. Firewood supply was probably obtained by the random gathering of dead wood. The combination of anthracological results with data provided by archaeological and bioanthropological research indicated that the population which constructed this site (1) had a relatively stable sociocultural system; (2) carried out a range of individual activities that remained constant throughout the occupation period; (3) lived in a relatively stable environment.  相似文献   

14.
Changing Ethnic Segregation and Housing Disadvantage in Dundee   总被引:1,自引:0,他引:1  
Abstract

Dundee has a small black and minority ethnic (BME) population, which has been neglected by previous research, as have BME populations in small towns and cities generally. As in other British cities, the residential locations of the main BME groups are distinct from that of the white population. After briefly reviewing the history of settlement in Dundee, this paper examines the extent to which patterns of ethnic segregation have changed between 1991 and 2001. Some moves towards dispersal and suburbanisation are identified but there are important contrasts between different BME groups. The implications of segregation for housing availability are assessed through Census of Population data. The hypothesis is posed that the consequences of segregation for housing disadvantage are greater in small cities such as Dundee.  相似文献   

15.
Rapid urbanisation and industrialisation have resulted in sharp land cover changes. Urban change not only impacts on land cover but also on urban climate. Land surface and atmospheric modifications due to urbanisation generally lead to a modified thermal climate that is warmer than the surrounding, non-urbanised areas. In this research remote sensing technology was used to evaluate urban growth patterns and its thermal characteristics through mapping impervious surfaces and evaluating thermal infrared images. The case study was carried out in the northern part of Ho Chi Minh City, which has experienced accelerated urban development since the late 1980s. Landsat and Aster images were used to calculate variations in urban impervious surfaces from 1989 to 2006. Thermal bands were processed to obtain radiant surface temperatures for investigating the urban heat island effect associated with increasing impervious surfaces, both spatially and temporally. Impacts of urban development on surface temperature were shown by investigating the surface urban heat island effect intensity. The results show that the built-up area in the northern part of Ho Chi Minh City expanded by 6.5 times between 1989 and 2006. Urban development has altered the magnitude and pattern of the surface urban heat island, with the highest land surface temperature cores found in the industrial (greater than 45oC) and urban areas (within 36oC and 40oC). In suburban and rural areas, where agricultural land still remains with full vegetation cover, the land surface temperature is usually lower. Using remote sensing, the impervious surface was extracted with overall accuracy and a Kappa coefficient for all three years greater than 96%, and the retrieved land surface temperatures with variations from in-situ measurements of less than 2oC. The results presented here indicate that remote sensing can help to spatially monitor urban development and land surface temperature changes over the whole area and over a long period of time.  相似文献   

16.
ABSTRACT

For the eight years prior to the September 2014 election in Fiji, no data were available that could enable observers to gauge the extent of support for the Bainimarama government. During that period, a range of conflicting claims emerged about shifting political loyalties within Fiji, largely based on anecdotal evidence. This paper makes use of the micro-level September 2014 election results to enquire about rural/urban, ethnic, class and provincial bases of support for the major parties. It finds that backing for the main opposition party was concentrated in areas with small populations, high levels of out-migration and relatively low voter turnout. Conversely support for the incumbent government was strongest on the more densely populated main island of Viti Levu, particularly in the fastest growing western part of that island.  相似文献   

17.
This paper reports the results of pollen, phytolith and diatom analyses conducted on a series of soil samples collected from a large, possibly communal, system of terraces associated with La Quemada in the Malpaso Valley, Zacatecas, Mexico. These analyses rendered data related to both paleoenvironmental and plant cultivation in the area. Preliminary pollen analyses of soil sediments suggest Agave sp. and Opuntia spp. cultivation played an important role on the terraces. The phytolith analyses recovered abundant, well preserved grass phytoliths, including Zea mays. The composition of the grass community suggests that paleoenvironmental conditions in this area were warm and dry, similar to those of today. The presence of three fresh water diatom taxa and sponge spicules in several archaeological soil samples suggests the possibility that water was carried to the terraces for irrigation from the nearby Rio Malpaso on a regular basis.  相似文献   

18.
In post‐conflict contexts characterized by large‐scale migration and increasing levels of legal pluralism, customary land tenure risks being deployed as a tool of ethno‐territorialization in which displaced communities are denied return and secure land rights. This thesis will be illustrated through a case study of the Indonesian island of Ambon where a recognition of customary tenure — also called adat — was initiated in 2005 at the end of a high‐intensity conflict between Christians and Muslims. Although a system of land tenure providing multiple forms of social security for the indigenous in‐group, adat in Ambon also constitutes an arena of power in which populations considered as non‐indigenous to a fixed historical territory are pushed into an inferior legal position. The legal registration of customary tenure therefore tends to be deployed to settle long‐standing land contests with a growing migrant community, hereby legally enforcing some of the forced expulsions that were brought about by the recent communal violence.  相似文献   

19.
ABSTRACT

We analyse a nationally representative data set from India for the year 2013 in order to provide evidence on how short-term migration is affected by household ownership of land and participation in agricultural activities. We estimate a recursive-bivariate-probit model recognising the simultaneity between short-term migration and the decision to operate the land. The results of the likelihood ratio test imply that it would be incorrect to ignore this simultaneity. Households with less than 1?ha of land and those leasing out land are more likely to have a short-term migrant. Households leaving their land fallow, a common occurrence in South Asia, are also more likely to have a short-term migrant. Moreover, the choice of crops and livestock farming has a significant role to play in the migration decision. Current initiatives to increase coverage of irrigation and facilitate access to formal finance could improve the livelihoods of small and marginal farmers, thereby reducing the probability of distress-related short-term migration.  相似文献   

20.
Abstract

The loss of agricultural land and its implications have been of great concern in the last decade. By undertaking a spatial analysis of the appropriation of agricultural land for urban use with an overlay of population and urban data, a focus on the consequences of certain regulations on the dynamics of land-use change is explored. This is achieved by integration of data inventories of agricultural land use for Portugal, and linking this information with CORINE Land Cover data as to assess change in the Algarve. An integrated assessment of agricultural land loss follows, undermined by the consequences of urban sprawl. In this sense, this paper expands on the currently existing decrees which provide support to sustainable development in the region while providing a qualitative assessment of future roles based on ethical values and economic efficiency and offering a feasible framework for policy-makers regarding the trends of urban/agricultural dichotomy in a planning and decision-making context.  相似文献   

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